Condenser



l May 26, 1936. w. w. GARSTANG 2,042,044

CONDENSER Filed Aug. 22, 1932 Wz/ifam Wi @Muang ATTORNEYS Patented May 26, 1Q36 UNITED STATES PATENT FFlC.

CONDENSER Application August 22, 1932, Serial No. 629.808

9 Claims.

My invention relates to improvements in electric condensers and particularly to electrolytic condensers.

It is one of the objects of my invention to obtain greater capacity per unit of volume of con- '5 densers which have heretofore been used or manufactured.

Another object of my invention is to construct a condenser which may be readily and easily manufactured and due to the increase in capacity may be accordingly made in much smaller sizes.

For the purpose of disclosing my invention I have illustrated certain embodiments thereof in the accompanying drawing in which:

Fig. 1 is a side elevation oi a condenser embodying my invention;

Fig. 2 is a longitudinal sectional view oi one form of structure embodying my invention;

Fig. 3 is a longitudinal sectional view of another form of my invention;

Fig. 4 is a longitudinal sectional view of still another form of my invention; and

Fig. 5 is al longitudinal sectional view of a further modification of my invention. According to my invention as particularly lllustrated in Fig. 1, the cathode and anode each preferably consists of a wire l and 2 wound in parallelism on a spool 3. In carrying out my invention as illustrated in Fig. 2 the anode preferably consists of aluminum wire having a coating of dielectric lm coating the same which may be of aluminum oxide. The cathode may consist of a similar aluminum wire or of Wire of other suitable material and this wire is preferably covered with absorbent material. This absorbent material may be in the form of a cotton covering braided or wound'thereon in any desirable manner. According to the preferred commercial practice of constructing the condenser, anode and cathode wires are wound in side by side relation continuously upon the spool, layer upon layer until the desired amount of wire has been rolled into spool form. The spool thus formed may then be immersed in an electrolyte of any of the well 45 known kinds and is preferably triethanolamlne borate. The condenser is allowed to remain immersed in the electrolyte until the absorbent covering for the cathode is thoroughly impregnated with the electrolyte. While this is the prefer- 50 able manner oi' constructing my condenser it will be understood that the absorbent covering for the cathode may be impregnated with the electrolyte before the wires are wound into spool form. In order to more quickly and more thor- 55 oughLv lmpregnate the absorbent covering of the (ci. 17a-31.5)

cathode I may impregnate this covering under a vacuum or under pressure either when completely wound or before the wire is wound upon the spool. The cathodes and anodes may be connected by suitable leads in any desired manner to exterior apparatus. 5

In the structure illustrated in Fig. 3 the anode may consist of the wire wound in layers in spool form and having interposed between the layers a cathode 5 in the' form of an aluminum or other suitable metal sheet or foil. Interposed between l0 the layer of wire and the foil layer is a layer of absorbent material, such for instance as cotton gauze, or the like. In this structure the gauze may be impregnated with an electrolyte as described in connection with Fig. 2. 15

In Fig. 4 the structure is substantially the same as that illustrated in Fig. 3 with the exception that in Fig. 4 I have used a cotton covered wire thereby dispensing with the layer of cotton gauze.

In Fig. 5 I have ulustreted a structure wherein 20 the anode 6 consists of a wire spool and the cathode 1 may take the form of the container. In this structure I have dispensed with the gauze separator and have left between the outer periphery of the spool and the container a suilicient 25 space to receive the electrolyte therebetween. Suitable coverings 8 and 9 may be used for closing the ends of the container and these closure members are preferably. of insulating material and may be in the form oi' ilber discs. 3o

The capacity of a condenser for any given voltage is in proportion to the surface area of the anode member or members. Due to the fact that in my condenser I use wire I am enabled to materially increase the surface area of the anode member or members without increasing the ultimate size of the condenser.

Furthermore the construction of the condenser is extremely simple particularly with respect to 40 the structure illustrated in Fig. 1 as all that is necessary is to i'eed to a revolving spool or spindle a pair of wires, one of which is cotton covered and the other of which has had formed thereon a nlm as heretofore described. I am therefore enabled to construct a condenser alt/extremely low cost and provide a condenser of comparatively small size having a largely increased capacity.

While I have shown in the drawing the wire used as being substantially cylindrical in cross section, wire havingother than cylindrical cross sectional shape may be used.

I claim as my invention:

1. A condenser including an anode and cathode consisting oi wires wound concentrically and u at least one of said wires being covered by analisorbent material impregnated -withan velectro-"- lyte, l

4. As a new article of manufacture, a condenser comprising two wires, .at least one of .which` v i v 1s mm forming' one of sa d Wes being "covered ".-}absorbent spacer carrying an electrolyte inte with absorbent material, wound in parallel relation into a coil structure and having the absorbent covering impregnated with-an electrolyte." 5` A condenser comprising a cathode element and an anode element, one of said elements comprising a series of coils of film forming wire,-

comprise Wires` wound in parallel relation in concentric layers.,

ifat'least one of which is film forming, each comprising coils of wire arranged in proximity to one another, the Wire of at least one of said coils `,being *covered withfan absorbent material impregnated with an electrolyte.

f 8. A condenser including an anode element comprising awirecoil, a cathode clement arranged'adjacent th'e`coils of said anode and ari posed betweenhthe cathode and anqdeelement.

9; AfA condenserr yincluding 4 an anodel element comprising" a 'wire' col'; "a 'cathode 'element ar- 20 ranged adjacent said anode element, thew'lreiof said anodecoil:'beingfcovered with an absorbent material virripregfriatedj with'an electrolylzev 

